pfkey: Operation not supported

[John Abbott <john_(_dot_)_abbott_(_at_)_pca_(_dot_)_state_(_dot_)_mn_(_dot_)_us>]

I am just getting started on this so don't know at all if -src and -dst
are right but why am I getting this message?

snuf# ipsecadm new esp -spi 1000 -src 192.168.2.25 -dst 214.188.178.12
-forcetunnel -enc blf -auth sha1 -keyfile pca -authkeyfile pcaAuth
pfkey: Operation not supported
snuf# 

This is a 2.9 box that might someday be talking to another 2.9 box.

--ja